Weather for UTMB Mont-Blanc
Weather data based on 10-year averages for the race date (23 August).
Prevailing condition
Clear — Sunny day with good visibility
Temperature
13°C – 23°C
Temperature ranges from 13°C to 23°C, averaging 18°C. Plan layered clothing accordingly.
Rain
23%
There is a 23% chance of rain, averaging 0.9 mm. Low chance of rain, but carry a lightweight windbreaker.
Wind
7 km/h
Average max wind speed of 7 km/h. Light winds: should not affect the race.
Sunshine hours
12h
Expected 12h of sunshine per day. Sun protection essential: SPF50+ sunscreen, cap and sunglasses.
Forecast for 23 August
Weather forecast from Open-Meteo (may change until race day)
Recommended gear based on weather
Sun protection essential (12h sunshine, up to 23°C)
The weather forecast becomes available 16 days before the race
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